<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>无标题文档</title>
<style>
#one{width:100px; height:100px; background:red;}
</style>
<script>
function setStyle(obj,json){
	for(var attr in json){
		obj.style[attr]=json[attr];	
	};	
}
window.onload=function(){
	var one=document.getElementById('one');
	one.onclick=function(){
		setStyle(one,{width:'200px',height:'200px',background:'green'})
	}	
}
</script>
</head>

<body>
<div id="one"></div>
</body>
</html>
